Scraper



' May 30, 1944. J. A. 01555 SCRAPER Filed Sept. 13, 1943 INVENTOR. JOSEFA. DI SSE ATTORNEYS 1 1:2 -lzlziif u Patented May 30, 1944- ED STATESPATENT OFFICE SCRAPER Jose! A. Disse, Detroit, Mich. ApplicationSeptember 13, 1943, Serial No. 502,231

. .11 Claims.

The invention relates to scrapers of that type usually employed in thefaces and for like purposes.

It is the object of the invention to obtain a construction in which thescraping-tool forms a relatively small I however, is firmly attached tothe operating handle and can be removed or replaced whenever necessary.e j A The invention therefore consists in struction as hereinafter setforth.

In the drawing: o, o Figure 1 is a plan view of my improved scraper.Figure 2 is a central longitudinal section on line 2-2, Figure 1. M

Figure 3 is a sectional side elevation showing the scraping tooldisengaged from thehandle;

Figure 4 is a perspective view of the scraping tool. l

Figure 5 is a plan with the scraping tool de-j tached illustrating amodified construction. Figure 6 is a perspective view of the tool tomtheconstruction shown in Figure 5. I, v

Figure '7 is a longitudinal sectionillustrating a modified constru tionof locking means for the tool.

My improved scraper consists essentially of a handle A and connectedshank portion B forming the greater part of the leng'th of theinstrument, and an attachable tool Cadapted to be rigidly connected tosaid shank. The tool member C is formed of a high-grade steel or othersuitable cutting metal and, asshown in'Figure 2 and Figure 4, has ablade portion C of sufficient length to provide for successivesharpenings and an oflset portion 0 for connecting with the handleshank. 'Between these portionsis a connecting shoulder portion C whichabuts against the end of the shank B to transmit all work stressesthereinto. The shank 'B" has a forwardly projecting finger portion Bwhich passes through a channel in the portion C and bears against theupper side of the portion C. The offset portion C bears against theupper face of the shank B and is held in firm contact therewith by alocking member D. 'This'member is formed with a'return bent hook D atitsforward end for engaging a recess C in the portion C There is also apivotal toggle link D connected to the rear en'd of the member D andalso to the shank B, being adapted to draw the rearward and to hold theportion C down upon the shank. The link D? has an oper: ating portion Dwhich in the position shown in Figure 2 rests upon the top of the shank,with the pivotal portion of the link located in arecess B in said shank.In such position, the tool C is rigidly secured to the shank Band'functions the same as if formed integral therewith. However, bylifting the operating portion D, the

truing of 'metal sur-' part of the structure which,

link D will be swung outward, carrying the member D with it anddisengaging the hook 'D' from the recess C new tool may be substitutedtherefor.

fThe modified construction illustrated in Figure 5 and Figure 6 tionpreviously described, with the exception that in the former the channelC for receiving the finger B is in the center of the portion C whereasin the modified construction a pair'of spaced fingers B engage channelsC upon opposite sides of the portion 0 center. The locking will be justthe same and will secure the tool rigidly to the shank B.

One important advantage of the construction isthat the stress producedby the scraping ac; tion is transmitted directly from the blade G intothe abutting handle shank B. This avoids any tendency for the blade tospring out of shape when being used. Also the fact that the voffsetportion C is held down upon the shank B and that the finger B or fingersB press down upon the blade portion C, will prevent any flexing of thetool at the joint between the same and the handle shank.

The tool forms only a small portion of the instrument, so that when madeof high-grade metal its costs will not be excessive.

I Figure 7 illustratesa modified construction of locking means for thetool in which there is substituted for the return bent hook D anadjustable screw D having a threaded engagement with an angle portion Don the member D. This permits of adjustment to compensate for any wearand insures that the tool will always be held firmly in abuttingengagement with the shank.

Another veryiirnportant advantage of the con-. struction is that theportions C an'dC of the tool are exchangeable in positions so thateither one may be used for the scraping. edge. This-doubles the life ofthe tool and also permits of, having scraping. edges formed .01? adifferent character on the two portions C and C It is also possible toform thesescraping edges ofany desired contour not necessarily straight.This is for the reason that the thrust of the tool is takeninto the.shank through the shoulder portion C 1 -Astill further advantage of theconstruction is that the scraping edge may be the full width of the tooland there is nothing in the handle or lockingmeans projecting beyondthis width. Consequently, the operator may scrape a surface in the work"extending into a corner Without"interference. l

What I claim as my inventionis': r l T r 1. A- scraper comprisinga'handle provided with a forwardly extending shank and a tool detachablyengaging said shank, said tool being Thus, thetool maybe easily: removedand replaced, and when worn out, a

is similar to the construc-' which is in the against said shank totransmit working stresses thereinto, I

and the ofiset portion being clamped to said shank, and a fingerprojecting,frornsaid-shank through a channel in said tool to overlap theblade portion thereof.

3; Ascraper comprising ahandleprovided with, a, fo rdly,extending;shankand atool detacha: gaging said shank, said tool.beingformed with a blade portion, a securingportion ofiiset into aparallel plane, and a portion connecting said; bladeportion andsecuringzportion forming-ashoulderfor abutting against the end of said:shank, said connecting portion having; a

channel therethrough, a finger projecting. from said shank, through saidchannel to overlap and bear-ag inst said blade. portion, andclampingmeans: for holding said connecting portion ag in tsa1d-shoulder-and said securing portion sttherupperiace ofsaid; shank.

" .1 scraper comprising a handle. proi ided with. a,;forwardly,extending shank and autool det hablyengaging saidshank, said tool beingform witha bladeportion, a; securingportion I intoa parallel planev anda connectingporn. r tion betweensaid blade v forming-a shoulder for:abutting against theend oi saidshank and having. a. channelformedtherethrough, a finger. projecting from said shank to .ext.en dt and bu s? locking means comprising a, memberhaying a return bent hook, atits forward end, for engaging a reness n. said, connecting portion, anda toggle link pivotally connecting the rear end of said member to saidshank, said toggle link when turned into its folded position occupying arecess in said shank.

rough said channel to overnstsaid blade portion, and

5. A scraper comprising a handle provided with a forwardlyextendingvshank andv a tool detachably engaging said shank, said tool being formedwith a blade portion, a securing portion. offset into aparallel planeand a connecting portion between said blade and securing portionsforming a shoulder for abutting against the end of said shank and havinga channel formed therethrough, a finger projecting from said shanktoextend through said channel to overlap and abut against said bladeportion, and lovckirtlg means comprising a member having a return benthook at its forward end for engaging a recess in said connectingportion, and a toggle link plvotally connecting, the rear end of saidmember to said shank, said toggle link when turned into itsfoldedposition occupying a recess in said shank, and-an'operatingportion of said toga-lelink-for turning the same resting againstsaid=shank in the locked position ofsaid locking means. i

6. A scraper comprising a handle prov ded with aforwardly extendingshank and an attachable tool, thelatter being formed with a bladeportion, a securing portion ofiset into a parallel. plane, and aconnectingportion forming a shoulder for abutting against the end ofsaid shank, said conand securing portions necting portion having acentral recess extending therethrough, said shank having a forwardlyprojecting finger passing through said recess to overlap and bearagainst said blade portion, and clamping means for engaging. saidsecuring portion tozhold the s-amef against the'top of said shank and tohold said shoulder against the end of. said shank.

' 7. A scraper comprising a handle provided with a. forwardly extendingshank and an attachable tool, the latter being formed with a bladeportion, a securing portion offset into a parallel plane, .and aconnecting portion forming a shoulder for abutting against the end ofsaid shank, said connecting portion having channels therethroughonopposite sides of thecenter thereof, apair of; spacedl'fingers,projecting forward from said shank and passingthroughsaid channels tooverlap said bladeportion, and clamping means for engagingv said,securing portion to hold the sameagainst the upper. faceof said shank toalso holdsaidsshoulder against theend of said shank.

8. A- scraper compr singa handle provided with a forwardly extendingshank, a tool detachably engaging said shank,.said-,too 1 having offsetopposite end portions, either one orboth of which form scraping edgesbeing also provided with an intermediate, shoulder portion for abuttingagainst-said. shank totransmit working stresses thereinto, and means forclamping the rearwardlyextendingeofiset portionto said shank.

9. A scrapercomprisingahandle provided with a. forwardly. extending,shank, a tool detachably engaging said shank, said tool being formedwith oppositely extending ofiset end portionswith a shoulder. portion,therebetween, and means for.

clamping said tool with oneofisaid offset portions overlapping saidshank and, with said shoulder portionv abutting against the. end of theshank, said. clampingmeans including a return bent hook engaging saidshoulder portion and adapted to draw the sarneinto abutting: engagementwith said shank.

10. A. craper. comprising a handle provided witha forwardlyextendingshank, a tool detachablyengag inglsaid, shank havingoppositely extendingoffset, portions with ashoulder portion therebetween, one, of saidoffset portions bein adapted to overlap said shankv with the shoulderportion abutting against the end of the shank, and locking, means forsaid tool comprising a toggle lever.pivotallyconnected to said shank andoverlapping. the portionof the, tool overlapping the shank, the freeendof. saidtoggle lever having. a hook, portion for drawing said shoulderportion of the. tool into abutting engagement.

11. A scraper, comprising a handle provided with a forwardlyextendingshank, a tool detachably engaging'said shank having oppositely extendingofiset. portions witha shoulder portion therebetween, one, of saidofiset portions being adapted to overlap said shank; with the shoulderportion. abutting, against the end of the shank, and lockingv means forsaid tool comprising a toggle lever pivotally: connected at its rear endto said shank and. e 'rtending over said overlapping portion of thetool, the forward end of said toggle having an. angle portionoverlapping said shoulder, portion and an adjustable bearing on saidangle" portion for engaging said shoulder portion whereby the latter maybe drawn by said toggle, lever into abutting engagement with the ankvJOSEF A. DISSE.

